Idempotent playbooks under deploy/ansible/ prepare both production hosts: docker-ce + compose plugin, a non-sudo deploy service account holding the CI deploy key, key-only sshd, default-deny ufw, fail2ban, unattended upgrades and chrony. The main host also opens 80/443/9443 and creates the external edge network; the tg host verifies direct Bot API egress (the no-VPN assumption). The application is deployed separately by the prod-deploy workflow (later phase), running as the deploy account this playbook provisions.
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Prod host provisioning (Stage 18)
Idempotent Ansible that prepares the two production hosts. It installs Docker, a
non-sudo deploy service account, SSH hardening, a default-deny firewall,
fail2ban, unattended security upgrades and time sync. It does not deploy the
application — that is .gitea/workflows/prod-deploy.yaml's job, running as the
deploy account this playbook creates.
Hosts are referenced by ~/.ssh/config aliases (scrabble-main-ops,
scrabble-tg-ops), so no IPs or key paths live in the repo.
Prerequisites (controller)
ansiblewith the bundled collections (community.general,community.docker,ansible.posix).- The two hosts reachable as root via the ssh-config aliases, host keys already
accepted into
known_hosts(host_key_checking = True).
One-time: the CI deploy key
The CI prod-deploy workflow logs into the hosts as deploy using a dedicated
key. Generate it once on the controller, authorize its public half via the
playbook, and store its private half only in the Gitea PROD_SSH_KEY secret:
ssh-keygen -t ed25519 -N '' -C scrabble-ci-deploy \
-f ~/.ssh/scrabble_ci_deploy_ed25519
# private half -> Gitea secret PROD_SSH_KEY (set via API); never commit it
Run
cd deploy/ansible
ansible-playbook site.yml
The playbook reads the public key from ~/.ssh/scrabble_ci_deploy_ed25519.pub by
default; override with -e deploy_ci_pubkey_path=/path/to/key.pub. Re-running is
safe (idempotent) and survives a host resize.
What each host gets
- both (
common): docker-ce + compose plugin,daemon.json(live-restore, 10m×3 log rotation),deployuser (docker group, no sudo), key-only sshd,ufwdefault-deny incoming + allow SSH, fail2ban sshd jail, unattended upgrades, chrony,/opt/scrabble/{config,certs,dumps,images}. - main:
ufwopens 80/443/9443; the externaledgedocker network. - tg: verifies direct
api.telegram.orgegress (the no-VPN assumption).